Combined mold and liner for pipe openings



Jan. 1, 1924 1,479,610

c. E. JOHNSON ET AL COMBINED MOLD AND LINER FOR PIIPE QPENINGS, ETC Filed se t. v, 1923 1 F1 4, Fiq.2. v

(5 z a a 7 tj 4 H: w y F 7 I g 4@ 2 g 4; g 4 5 I P y k 4g 45 l Patented Jan. 1, 1924.

UNITED CHARLES E. JOHNSON AND VIILLIAM W. FIELDS, OF CLEVELAND, OHIO.

COMBINED MOLD AND LINER FOB PIPE OPENINGS, ETC. 7

Application filed September 7, 1923.

To all whom it may concern.

Be it known that CHARLES E. JOHNSON and IVILLIAM W. FIELDs, citizens of the United States, residing at Cleveland, in the county, of Cuyahoga and State of Ohio,

have invented certain new and useful Improvements in Combined Molds and Liners for Pipe Openings, etc., of which the following is a specification.

This invention relates to improvements in combined molds and metal liners for use in forming and permanently lining pipe openings or passage-ways in concrete and other types of walls or floors, etc., of buildings.

The primary object of this invention is to provide a device which may be readily adjusted for use in walls of different thicknesses, and carrying cap members Which are adapted for use in 'placeof the usual flanges or rings secured about steam pipes or the like at the floor or ceiling through which said pipe has passed.

It is also an object to provide a device which may be used in wooden or concrete buildings with equal facility and which may be cheaply and easily manufactured.

Other objects will be in part obvious and in part pointed out hereinafter.

In order that the invention andits mode of operation may be readily understood by persons skilled in the art, we have in the accompanying illustrative drawings, and in the following detailed description based thereon, set out one possible embodiment of the same.

In these drawings:

Fig. 1 is a vertical section showing the two cap members arranged in the sleeve prior to forming a pipe opening;

Fig. 2 is a detail view wherein the lower cap member has been eliminated, leaving only the supporting sleeve which is carried by and removable with the usual form;

Fig. 3 is a side elevation of the building device in use showing one of its adjusted positions in dotted lines; and;

Fig. 4 is a side elevation of one of the cap members.

Having more particular reference to the drawings, throughout which similar characters of reference will designate similar parts, this device may be stated as comprising a main body or metal sleeve 6, which may be formed of any sheet metal, prefer- Serial No. 661,493.

ably galvanized iron, and as is shown in the drawings is provided at a point substantially mid-way its length with an annular corrugation 7 which extends outwardly whereby to form a rib whose function will be hereinafter brought out. This sleeve is further provided with a pair of spiral corrugations 8 and 9 so formed in the sleeve as to provide ribs projecting outwardly in the same manner as the annular corrugation 7.

The spiral corrugations 8 and 9 are adapted to receive lugs or projections 10 carried by sleeves 12 and 13 which are arranged in the opposite ends, of the main sleeve 6. These named sleeves 12 and 13 as shown, are provided at their outer ends with annular outwardly directed flanges 14: and 15 which as heretofore stated are used for the same purpose as the usual flange rings which are placed around the steam pipes atthe wall or floor openings, thereby forming what- 1gvill be termed centrally opened cap memers. V

In using this device, the sleeve 6 is adapted to be slid over to the upstanding supporting sleeve 16 which is secured to the baseboard 17 of the form ordinarily used in making floors, walls and ceilings, etc., of the building, it being understood that the outwardly directed legs 18 are tacked or' otherwise secured to said board 17 It is quite obvious that during the pouring of concrete into the form for building up the floor, that some of the concrete would accidentally be poured into the sleeve 6, and in order to overcome this objection we have provided a stopper or closure 19 which as shown is in the form of a tapered sheet metal cap.

It is understood that this device in addi tion to forming a permanent liner for a pipe or other opening in the wall and ceiling further serves as a form for the molding of said opening. As shown in Figs. 1 and 2, the sleeve may be arranged in the form with the supporting sleeve 16 and the lower cap member 13, or we may eliminate the cap member as shown in the second figure.

It is generally the practice in constructing buildings to form openings in the walls or ceilings, run the, steam or other pipes through the openings and then insert the usual packing as far as possible, after which separable caps or rings are placed about the pipe to cover the space ordinarily left around the pipes at entrance to the opening. It isa known fact that in the insertion of the aforesaid packing, that the pipes are very seldom covered throughout the opening in the wall thereby resulting in the loss of considerable heat, whereas with this form of liner for the opening the packing may be continued on through the opening unbroken and entirely covering the pipe therein.

Arrangement of the centrally opened cap members upon the opopsite ends of the sleeve 6, and providing for relative longitudinal adjustment thereof results in construction of the device which may be employed in walls, floors, etc., of different thicknesses as heretofore stated.

At times a Sleeve of this character is necessary to line the opening through the floor, wherein said floor is inclined toward the opening so that water will flow to the opening from all directions. In this event it is apparent that there would possibly be some tendency for water to seep through the floor around the outside of said sleeve, and in order to overcome this objection the heretofore described annular corrugation or rib 7 is formed to tightly and snugly engage the concrete forming the floor. The advantages of this are obvious.

While the foregoing descriptive matte has confined the use of this device to concrete structures it is entirely obvious that the device could readily be employed in wooden or other structures where such a liner with its adjustable cap members is desired.

Manifestly, the construction shown is capable of considerable modification and such modification as may fall within the scope of our claims, we consider within the spirit of our invention.

lVe claim:

1. A device of the character described, comprising a metal sleeve having a substantially centrally arranged annular rib upon its outer surface, a pair of centrally opened cap members arranged within and snugly fitting the sleeve to permit variance of its length, and connections between the cap members and sleeve to retain them in any adjusted position.

2. A device of the character described, comprising a metal sleeve having an annular outwardly extending corrugation and a pair of spiral corrugations opening through the ends of the sleeve and terminating the inner ends near the annular corrugation and centrally opened cap members arranged in the ends of the sleeve and means carried by the cap members for slidable arrangement in the spiral corrugations to permit adjustment and retention of the caps in adjusted positions. 7

3-. A device of the character described comprising a metalsleeve, having a pair of spiral corrugations entering the sleeve from opposite ends, a pair of comparatively short sleeves arranged in the opposite ends of the main sleeve, lugs carried by the short sleeves and slidable in the corrugations, and said sleeves each having an annular outwardly directed flange at its outer end.

In testimony whereof, they aflix their signatures in presence of two witnesses CHARLES E. JOHNSON.- WILLIAM W. FIELDS. Witnesses:

G. MOSMBERG, JOHN A. BOMMHARDT. 

